TY - JOUR AU - Basu, A. K. TI - Invariance Theorems for First Passage Time Random Variables JO - Canadian mathematical bulletin PY - 1972 SP - 171 EP - 176 VL - 15 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-031-9/ DO - 10.4153/CMB-1972-031-9 ID - 10_4153_CMB_1972_031_9 ER -